Lighting device



FIG. 1 is a front side perspective view of a lighting device in accordance with the present invention;

FIG. 2 is a right side view thereof;

FIG. 3 is a rear side view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a front side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken line disclosure represents portions of the lighting device which form no part of the claimed design. 

CLAIM The ornamental design for a lighting device, as shown and described. 